Current Sea Water Temperature:
+90.6°F
| Maximum Sea Water Temperature in April: | 91.4°F |
| Minimum Sea Water Temperature in April: | 86.8°F |
| Average water temperature in April: | 89.0°F |
| detailed information | |
Sea Water Temperature for the Last 10 Days:
| April 09 | 90.6°F | April 04 | 90.6°F |
| April 08 | 90.6°F | April 03 | 91.0°F |
| April 07 | 90.2°F | April 02 | 90.2°F |
| April 06 | 90.8°F | April 01 | 90.2°F |
| April 05 | 90.4°F | March 31 | 90.4°F |
When is the Warmest Sea for Alajuela?
According to our data for the last three years for Alajuela the highest average sea water temperature was in April, May and March.
Average Water Temperature by Month, °F
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
0
15
30
45
60
75
90
105
120
86.7
86.1
86.8
87.4
87.9
87.9
88.1
88.8
89
88.5
87.9
87.4
Sea Water Temperature in April
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
84
86
88
90
92
94
96
The average sea surface temperature in April 2024 for Alajuela was 89.7°F. The maximum and minimum values were 89.0°F and 90.6°F respectively.
Sea Water Temperature in May
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
83
85
87
89
91
93
95
97
The average sea surface temperature in May 2024 for Alajuela was 89.5°F. The maximum and minimum values were 88.2°F and 90.4°F respectively.
Sea Water Temperature in March
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
83
85
87
89
91
93
95
The average sea surface temperature in March 2025 for Alajuela was 89.5°F. The maximum and minimum values were 88.4°F and 90.4°F respectively.
Costa Rica Resorts:
NAME
F°
| Alajuela |  |
+82 |
| Cartago |  |
+72 |
| Heredia | |
+76 |
| Jaco |  |
+90 |
| Limon | |
+86 |
| Playa Flamingo | |
+96 |
| Playas del Coco | |
+96 |
| Puerto Limon | |
+86 |
| Puerto Viejo de Talamanca | |
+86 |
| Quepos | |
+90 |
| Samara | |
+96 |
| San Jose | |
+76 |
| Santa Teresa | |
+92 |
| Tamarindo | |
+96 |
| Tortuguero | |
+88 |
Countries:
NAME
POPULARITY
24 Hours Weather Forecast
Alajuela
Local time: 13:34
09 apr, wednesday
| 1500 |  |
82°F | SW 8 mph |
| 1800 | |
70°F | SW 6 mph |
| 2100 |  |
60°F | SW 7 mph |
10 apr, thursday
| 0000 |  |
58°F | SW 7 mph |
| 0300 | |
56°F | SW 6 mph |
| 0600 |  |
56°F | SW 6 mph |
| 0900 | |
76°F | SW 5 mph |
| 1200 | |
86°F | SW 6 mph |